88 
S. L. Ghose. 
pseudo-branch as in Tolypothrix. Secondly pseudo-branches 
themselves are very rare, and as a rule, filaments are unbranched, 
though having one or more heterocysts. Even when pseudo¬ 
branches are present they are given off singly or in pairs as has 
been mentioned above, thus partaking of the characters of both 
Tolypothrix and Scytonema . A third characteristic is the curved 
shape of the filament. 
Fig. 4. An old filament showing the thick sheath and 'paired pseudo¬ 
branches. (X 450). 
The genus Campylonema was monographed by Schmidle in 
1900 (3) to include members of the Scytonemaceae with generic 
characters resembling those of the alga described above, with the 
exception that no mention of the presence of spores was made. 
Only one species, C. indicum Schm. has been described from 
Bombay, from which the alga under discussion differs in many 
respects. It is not epiphytic on Hepaticae like C. indicum , but 
occurs on damp soil forming a vast stratum. The thallus is thin 
and woolly and not fasciculate and crisp as in C. indicum . 
Trichomes are not very torulose and ramose upwards as those of 
C. indicum , and are not so thick as the latter. 
For the above reasons I propose to refer the alga described in 
this paper to the genus Campylonema and to create a new species, 
